Crusher with CC Turtle Side (Immersive Engineering)

rednet.open("left")
term.clear()
term.setCursorPos(1,1)
print("Crusher Program On")

while true do
    id,message = rednet.receive()
    if id == Computer1ID and message == "Crush" then -- The computer ID is yours
        for a = 1,4 do -- This value may change according to where is the turtle compared to the Crusher
            turtle.up()
        end
        turtle.turnLeft() -- Or turtle.turnRight() still according to the turtle location :3
        for a = 5,9 do
            turtle.forward()
        end
        for i = 1,16 do -- DON'T TOUCH THIS IT'S THE SLOT NUMBER !
            turtle.select(i)
            turtle.dropDown() -- did i forgot to mention that the turtle may be over the Crusher ?
        end
        for a = 10,14 do -- We're back on the turtle movement
        turtle.back()
        end
        turtle.turnRight() -- Or turtle.turnLeft() if you picked turnRight() earlier
        for a = 15,18 do
        turtle.down()
        end
    else
        sleep(0.1)
    end
end